Re: [linux-audio-user] Cannot get qjackctl, jackd, alsa working.

David Froseth wrote:
> I am trying to get jackd, qjackctl, and alsa working on a pentium d
> desktop running ubuntu edgy. I am getting these error messages when I
> start qjackctl:
>
> ..........
>
> ALSA: final selected sample format for capture: 32bit little-endian
> ALSA: use 2 periods for capture
> ALSA: final selected sample format for playback: 32bit little-endian
> ALSA: use 2 periods for playback
> 12:38:49.469 Could not connect to JACK server as client. Please check
> the messages window for more info.
> **** alsa_pcm: xrun of at least 0.024 msecs
> **** alsa_pcm: xrun of at least 0.012 msecs
> 12:38:57.669 MIDI connection change.
> **** alsa_pcm: xrun of at least 0.534 msecs
> 12:38:58.077 Could not connect to JACK server as client. Please check
> the messages window for more info.
> **** alsa_pcm: xrun of at least 0.124 msecs
> **** alsa_pcm: xrun of at least 2.709 msecs
> 12:39:01.196 JACK is stopping...
> **** alsa_pcm: xrun of at least 2.769 msecs
> jack main caught signal 15
> no message buffer overruns
> 12:39:01.333 JACK was stopped successfully.
>
> Any ideas on how to fix this?
>

There are a few possibilities.

- How are you starting the jack server and which user - root or normal?

- Is this the output from the qjackctrl error window or the command line?

-- 
Patrick Shirkey - Boost Hardware Ltd.
http://www.boosthardware.com
http://lau.linuxaudio.org - The Linux Audio Users guide
========================================
"Anything your mind can see you can manifest physically, then it will 
become reality" - Macka B